DECANTER CENTRIFUGES

Centrifuge decanters are continuous separation systems designed to efficiently separate solids from liquids or two immiscible liquids with different densities. Using high rotational speeds and controlled differential motion, decanter centrifuges deliver reliable separation in demanding industrial environments where gravity settling alone is insufficient.

These systems are widely used across industries such as chemical processing, wastewater treatment, food processing, pharmaceuticals, mining, and oil & gas where high throughput and consistent product quality are essential.

By applying centrifugal force thousands of times greater than gravity, decanter centrifuges accelerate the sedimentation process, enabling continuous separation even for very fine particles.

How a Decanter Centrifuge Works

A decanter centrifuge operates on the principle of centrifugal sedimentation. The equipment consists primarily of a rotating cylindrical bowl and a screw conveyor (scroll) rotating at a slightly different speed.

The separation process works as follows:

1. Feed Introduction
   The slurry or suspension is fed continuously into the rotating bowl through a stationary inlet pipe.

2. Centrifugal Separation
   As the bowl rotates at high speeds, centrifugal force causes the denser solid particles to move outward toward the bowl wall, while the lighter liquid phase forms an inner layer.

3. Solids Conveyance
   The internal screw conveyor rotates at a differential speed relative to the bowl, continuously transporting the separated solids toward the conical discharge end.

4. Liquid Clarification
   The clarified liquid flows toward the opposite end and exits through adjustable overflow weirs.

This continuous process ensures stable operation, high throughput, and minimal manual intervention.